Granted Patent
Utility
US 5,612,499 · App. 08/435,966
Method of inserting a sensor into a pipeline
Inventors:
Bill D. Andrew, Edward W. Levy
Patented Case
View Patent ↗
Granted: Mar 18, 1997
Filed: May 5, 1995
Inventors
Bill D. Andrew
Edward W. Levy
Assignee (at issue)
TDW Delaware, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.